Fan



FIG. 1 is a bottom and front perspective view of my new and ornamentalfan.

FIG. 2 is a top and back perspective view.

FIG. 3 is a left side view.

FIG. 4 is a front view.

FIG. 5 is a right side view.

FIG. 6 is a back view.

FIG. 7 is a bottom view; and,

FIG. 8 is a top view.

The broken line showing of side portions and rear and bottom aperturesis included for the purpose of illustrating environmental structure andforms no part of the claimed design.

The ornamental design for a fan, as shown and described.